EP2983451B1 - Induction cooker - Google Patents

Induction cooker Download PDF

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Publication number
EP2983451B1
EP2983451B1 EP15182798.7A EP15182798A EP2983451B1 EP 2983451 B1 EP2983451 B1 EP 2983451B1 EP 15182798 A EP15182798 A EP 15182798A EP 2983451 B1 EP2983451 B1 EP 2983451B1
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EP
European Patent Office
Prior art keywords
heating
display
level
fine adjustment
heating power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP15182798.7A
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German (de)
English (en)
French (fr)
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EP2983451A1 (en
Inventor
Jun Bunya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
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Application filed by Mitsubishi Electric Home Appliance Co Ltd, Mitsubishi Electric Corp filed Critical Mitsubishi Electric Home Appliance Co Ltd
Publication of EP2983451A1 publication Critical patent/EP2983451A1/en
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Publication of EP2983451B1 publication Critical patent/EP2983451B1/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates

Definitions

  • the present invention relates to a heating power display unit included in an induction cooking system, and more specifically to an induction cooking system capable of displaying and setting heating power, which has been set on the heating power display unit, to a further finer degree.
  • Patent Literature 1 Japanese Unexamined Patent Application Publication No. 2003-297541 (p. 5 and Figs. 1 and 2 )
  • the present invention is directed to solve the above problem and to provide an induction cooking system in which the degree of fine adjustment of heating power is visually recognizable without increase in cost.
  • An induction cooking system includes heat-inputting means setting a heat level from among rough heating levels that can be set to a heating coil configured to heat a heating load by induction; switching means switching the heating level that is set by the heat-inputting means to a corresponding one of heating levels for fine adjustment; heat-displaying means including a plurality of display windows that are provided for each of a low heat range, a moderate heat range, and a high heat range, the ranges being defined on the basis of the rough heating levels that can be set to the heating coil; first display-controlling means displaying the low heat range, the moderate heat range, and the high heat range each having the plurality of display windows in the heat-displaying means in different display colors, determining that an input mode is for coarse adjustment of heating power when a heating level is inputted from the heat-inputting means, determining a display window for the set heating level, and making display windows in the input mode for coarse adjustment of heating power up to the determined display window for the set heating level brighter; and second display-controlling means determining that
  • the low heat range, the moderate heat range, and the high heat range each having the plurality of display windows in the heat-displaying means are displayed in different display colors.
  • a heating level is inputted from the heat-inputting means, it is determined that the input mode is for coarse adjustment of heating power.
  • a display window for the set heating level is determined, and display windows in the input mode for coarse adjustment of heating power up to the determined display window for the set heating level are made brighter.
  • the switching of the heating level to heating levels for fine adjustment performed by the switching means is detected, it is determined that the input mode is for fine adjustment of heating power, and all of the display windows are switched to the display color of the range in which the range that had been lastly brightened up by the first display-controlling means belongs.
  • heating levels for fine adjustment defined for the range are determined, a display window for one of the heating levels for fine adjustment that is the same as or approximate to the set heating level is determined, and display windows from a display window in a lowest heating level for fine adjustment in the input mode for fine adjustment of heating power up to the determined display window are made brighter.
  • the degree of fine adjustment of heating power is visually recognizable without a significant increase in cost, whereby an induction cooking system with high user usability is provided.
  • Fig. 1 is a block diagram illustrating an outline configuration of an induction cooking system according to Embodiment 1 of the present invention.
  • a heating coil 11 of the induction cooking system is provided below a top plate (not illustrated) and is connected in series with a resonant capacitor 12.
  • An inverter 13 converts direct-current voltage into high-frequency voltage on the basis of a driving signal from a heating control unit 14 and supplies the high-frequency current to a load circuit of the heating coil 11 and the resonant capacitor 12.
  • the heating control unit 14 generates the driving signal on the basis of a heating power command from a main control unit 19 and drives the inverter 13.
  • a heating power display unit 15 is provided at, for example, the front edge of the top plate and has, for example, nine display windows 15a on the top face thereof.
  • the display windows 15a are given different heating level numbers from, for example, "1" to "9".
  • a set of, for example, a green LED, an orange LED, and a red LED is provided at the back of each of the display windows 15a.
  • heating level 1 represents 100 W
  • heating level 2 represents 300 W
  • heating level 3 represents 500 W
  • heating level 4 represents 750 W
  • heating level 5 represents 1000 W
  • heating level 6 represents 1500 W
  • heating level 7 represents 2000 W
  • heating level 8 represents 2500 W
  • heating level 9 represents 3000 W.
  • the display windows 15a for heating levels 1 to 3, heating levels 4 to 6, and heating levels 7 to 9 are classified as belonging to a low heat range, a moderate heat range, and a high heat range, respectively.
  • the heating power display unit 15 When the heating power display unit 15 is in a standby state, the display windows 15a for heating levels 1 to 3 belonging to the low heat range are lit in green, the display windows 15a for heating levels 4 to 6 belonging to the moderate heat range are lit in orange, and the display windows 15a for heating levels 7 to 9 belonging to the high heat range are lit in red.
  • a key switch 16 functioning as heat-inputting means is provided on, for example, a frame body provided on a front edge side of the top plate.
  • An encoder knob 17 (heat-adjusting dial) also functioning as heat-inputting means is provided on, for example, the front face of the induction cooking system.
  • the key switch 16 includes a heating power UP key for increasing the heating power and a heating power DN key for decreasing the heating power.
  • the encoder knob 17 is configured to increase/decrease the heating power when rotated in a certain direction.
  • a mode switching switch 18 functioning as switching means is provided adjacent to the key switch 16, for example, and switches the heating power settings represented by the above heating level numbers (a mode for coarse adjustment of heating power) to detailed heating power settings (a mode for fine adjustment of heating power).
  • the mode switching switch 18 is also responsible for the switching from the mode for fine adjustment of heating power to the mode for coarse adjustment of heating power.
  • the main control unit 19 which will be detailed below in describing the operation, has functions as first and second display-controlling means.
  • the main control unit 19 determines that the input mode is to be the input mode for coarse adjustment of heating power. Then, the main control unit 19 controls the heating control unit 14 such that a heating load is heated by induction with the heating level that has been set by the above control, and also controls the heating power display unit 15 such that display windows 15a up to the one having the heating level number corresponding to the set heating level become brighter still.
  • the main control unit 19 has data on the low heat range, the moderate heat range, and the high heat range associated with the heating power settings; heating powers for fine adjustment that are defined for each of the ranges; and heating level numbers associated with the heating powers for fine adjustment defined for each range.
  • the main control unit 19 determines the range to which the set heating level belongs and determines the heating level of the fine adjustment in that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level. Subsequently, the main control unit 19 controls the heating power display unit 15 such that all the display windows 15a come to have a color corresponding to the determined range and such that display windows 15a up to the one having the determined heating level number become brighter still. Thus, the mode is switched to the input mode for fine adjustment of heating power.
  • Fig. 2 is a diagram illustrating exemplary displays indicated on the heating power display unit of the induction cooking system according to Embodiment 1.
  • the main control unit 19 controls the heating power display unit 15 to be in the standby state with, for example, the display windows 15a for heating levels 1 to 3 belonging to the low heat range being green, the display windows 15a for heating levels 4 to 6 belonging to the moderate heat range being orange, and the display windows 15a for heating levels 7 to 9 belonging to the high heat range being red as illustrated in (a) of Fig. 2 .
  • the main control unit 19 controls the display windows 15a for heating levels 1 and 2 belonging to the low heat range to become brighter still as illustrated in (b).
  • the main control unit 19 controls all the display windows 15a belonging to the low heat range (green) to become brighter still and also controls the display window 15a for heating level 4 belonging to the moderate heat range (orange) to become brighter still as illustrated in (c).
  • the main control unit 19 controls each of the display windows 15a up to the one for heating level 8 belonging to the high heat range (green, orange, and red) to become brighter as illustrated in (d).
  • the main control unit 19 determines that the mode has been switched to the input mode for fine adjustment of heating power and switches the display to a display for fine adjustment of heating power. In this case, the main control unit 19 determines heating level 2 as belonging to the low heat range, determines heating levels for fine adjustment that are defined for that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level 2 to be "5". Subsequently, the main control unit 19 controls the heating power display unit 15 such that all the display windows 15a turn green and the display windows 15a up to the one for the determined heating level 5 become brighter still.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with a heating power (electric power) corresponding to heating level 6, and makes the display window 15a for heating level 6 brighter also.
  • the main control unit 19 determines that the mode has been switched to the input mode for fine adjustment of heating power and switches the display to a display for fine adjustment of heating power. In this case, the main control unit 19 determines heating level 4 as belonging to the moderate heat range, determines heating levels for fine adjustment that are defined for that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level 4 to be "3". Subsequently, the main control unit 19 controls the heating power display unit 15 such that all the display windows 15a turn orange and the display windows 15a up to the one for the determined heating level 3 become brighter still.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with a heating power (electric power) corresponding to heating level 2, and makes the display windows 15a for heating levels 1 and 2 brighter.
  • the main control unit 19 determines that the mode has been switched to the input mode for fine adjustment of heating power, as in the above case, and switches the display to a display for fine adjustment of heating power. In this case, the main control unit 19 determines heating level 8 as belonging to the high heat range, determines heating levels for fine adjustment that are defined for that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level 8 to be "6".
  • the main control unit 19 controls the heating power display unit 15 such that all the display windows 15a turn red and the display windows 15a up to the one having the determined heating level number "6" become brighter still. Subsequently, when, for example, heating level 7 is set with the encoder knob 17, the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with a heating power (electric power) corresponding to heating level 7, and makes the display window 15a for heating level 7 brighter also.
  • a heating power electric power
  • the heating power display unit 15 is controlled such that all the display windows 15a come to have a color corresponding to the range to which the set heating level belongs and such that the display windows 15a up to the one having the determined heating level number become brighter still.
  • Embodiment 1 when the mode is switched to the input mode for fine adjustment of heating power in a state where a heating level is set, all the display windows 15a are made to have a color of the range corresponding to the set heating level and the display windows 15a up to the one having the heating level number corresponding to the set heating level are made brighter still.
  • heating powers in the input mode for coarse adjustment of heating power and in the input mode for fine adjustment of heating power, heating powers (electric powers) are displayed near all the respective display windows 15a.
  • a heating power display unit 15 according to Embodiment 2 includes nine display windows 15a as in the above case.
  • display windows 15a for heating levels 1 to 3 belonging to the low heat range are lit in green
  • display windows 15a for heating levels 4 to 6 belonging to the moderate heat range are lit in orange
  • display windows 15a for heating levels 7 to 9 belonging to the high heat range are lit in red.
  • heating powers (electric powers) that are defined in correspondence with the heating level numbers are displayed under the respective display windows 15a.
  • Fig. 3 is a diagram illustrating exemplary displays indicated on the heating power display unit of the induction cooking system according to Embodiment 2.
  • the main control unit 19 controls the heating power display unit 15 to be in the standby state with, as illustrated in (a) of Fig. 3 , the display windows 15a for the low heat range being green, the display windows 15a for the moderate heat range being orange, and the display windows 15a for the high heat range being red.
  • the main control unit 19 displays heating powers (electric powers) that are defined in correspondence with the heating level numbers under the respective display windows 15a.
  • 100 W is displayed under the display window 15a for heating level 1
  • 300 W is displayed under the display window 15a for heating level 2
  • 500 W is displayed under the display window 15a for heating level 3
  • 750 W is displayed under the display window 15a for heating level 4
  • 1000 W is displayed under the display window 15a for heating level 5
  • 1500 W is displayed under the display window 15a for heating level 6
  • 2000 W is displayed under the display window 15a for heating level 7
  • 2500 W is displayed under the display window 15a for heating level 8
  • 3000 W is displayed under the display window 15a for heating level 9.
  • the main control unit 19 determines that the mode has been switched to the input mode for fine adjustment of heating power and switches the display to a display for fine adjustment of heating power.
  • the main control unit 19 determines heating level 2 as belonging to the low heat range, determines heating levels for fine adjustment (as an exemplary distribution, 100 W, 150 W, 200 W, 250 W, 300 W, 350 W, 400 W, 450 W, and 500 W) that are defined for the respective heating level numbers (1 to 9) given in that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level (300 W) to be "5".
  • the main control unit 19 controls the heating power display unit 15 such that all the display windows 15a turn green, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a, and such that the display windows 15a up to the one for the determined heating level 5 become brighter still.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating power corresponding to heating level 6 (350 W), and makes the display window 15a for heating level 6 brighter also.
  • the main control unit 19 determines that the mode has been switched to the input mode for fine adjustment of heating power and switches the display to a display for fine adjustment of heating power.
  • the main control unit 19 determines heating level 4 as belonging to the moderate heat range, determines heating levels for fine adjustment (as an exemplary distribution, 600 W, 700 W, 800 W, 900 W, 1000 W, 1100 W, 1300 W, 1500 W, and 1700 W) that are defined for the respective heating level numbers (1 to 9) given in that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level (750 W) to be "3".
  • the main control unit 19 controls the heating power display unit 15 such that all the display windows 15a turn orange, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a, and such that the display windows 15a up to the one for the determined heating level of 3 become brighter still.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating power corresponding to heating level 2 (700 W), and makes the display windows 15a for heating levels 1 and 2 brighter.
  • the main control unit 19 determines that the mode has been switched to the input mode for fine adjustment of heating power, as in the above case, and switches the display to a display for fine adjustment of heating power.
  • the main control unit 19 determines heating level 8 as belonging to the high heat range, determines heating levels for fine adjustment (as an exemplary distribution, 1800 W, 1900 W, 2000 W, 2200 W, 2400 W, 2600 W, 2800 W, 2900 W, and 3000 W) that are defined for the respective heating level numbers (1 to 9) given in that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level (2500 W) to be "6".
  • the main control unit 19 controls the heating power display unit 15 such that all the display windows 15a turn red, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a, and such that the display windows 15a up to the one for the determined heating level of 6 become brighter still.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating power corresponding to heating level 7 (2800 W), and makes the display window 15a for heating level 7 brighter also.
  • the range to which the set heating level belongs is determined, the heating levels for fine adjustment that are defined for the respective heating level numbers given in that range are determined, and the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level is determined.
  • the heating power display unit 15 is controlled such that all the display windows 15a come to have a color of the range to which the set heating level belongs, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a, and such that the display windows 15a up to the one having the determined heating level number become brighter still.
  • the degree of fine adjustment of heating power is visually recognizable without a significant increase in cost, and the numerical values of the respective heating levels for fine adjustment are also recognizable, whereby an induction cooking system with higher user usability is provided.
  • a heating level for fine adjustment that is higher than the set heating level is selected as being approximate to the set heating level.
  • a heating level for fine adjustment that is lower than the set heating level may be selected as being approximate to the set heating level. In the latter case, safety is further increased.
  • displaying of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level on the heating power display unit 15 may be displayed in the display window 15a for heating level 5.
  • the heating level that has been set in the input mode for coarse adjustment of heating power is displayed in the middle of the heating power display unit 15. Therefore, ease of visual recognition by the user increases.
  • Fig. 4 is a diagram illustrating exemplary displays indicated on a heating power display unit of an induction cooking system according to Embodiment 3 of the present invention.
  • the configuration of the induction cooking system is the same as that in Embodiment 1 illustrated in Fig. 1 .
  • a heating power display unit 15 according to Embodiment 3 includes nine display windows 15a as in the above case. In the standby state, all the display windows 15a are lit in, for example, blue. Furthermore, as in Embodiment 2, heating powers (electric powers) are displayed under the respective display windows 15a.
  • the main control unit 19 which will be detailed below in describing the operation, has functions as first and second display-controlling means.
  • the main control unit 19 determines that the input mode is to be the input mode for coarse adjustment of heating power. Then, the main control unit 19 controls the heating control unit 14 such that the heating level is set on the basis of the control performed, and also controls the heating power display unit 15 such that the color of the display windows 15a up to the one having the heating level number corresponding to the set heating level is switched from blue to, for example, red.
  • the main control unit 19 has data on the low heat range, the moderate heat range, and the high heat range associated with the heating power settings; heating powers for fine adjustment that are defined for each of the ranges; and heating level numbers associated with the heating powers for fine adjustment defined for each range.
  • the main control unit 19 determines that the input mode for coarse adjustment of heating power has been switched to the input mode for fine adjustment of heating power, determines the range to which the set heating level belongs, determines the heating levels for fine adjustment that are defined for that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level. Subsequently, the main control unit 19 controls the heating power display unit 15 such the color of the display windows 15a up to the one for the determined heating level number is switched from blue to red.
  • Fig. 4 is a diagram illustrating exemplary displays indicated on the heating power display unit of the induction cooking system according to Embodiment 3.
  • the main control unit 19 controls the heating power display unit 15 to be in the standby state with, as illustrated in (a) of Fig. 4 , all the display windows 15a being blue. In this state, the main control unit 19 displays heating powers (electric powers) that are defined in correspondence with the heating level numbers under the respective display windows 15a. The correspondence between the heating level numbers and the heating powers is the same as that in Embodiment 2.
  • the main control unit 19 determines that the mode has been switched to the input mode for fine adjustment of heating power and switches the display to a display for fine adjustment of heating power.
  • the main control unit 19 determines heating level 2 as belonging to the low heat range, determines heating levels for fine adjustment (as an exemplary distribution, 100 W, 150 W, 200 W, 250 W, 300 W, 350 W, 400 W, 450 W, and 500 W) that are defined for the respective heating level numbers (1 to 9) given in that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level (300 W) to be "5". Subsequently, the main control unit 19 controls the display windows 15a up to the one for the determined heating level of 5 to turn red, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a.
  • the main control unit 19 controls the display windows 15a up to the one for the determined heating level of 5 to turn red, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating power corresponding to heating level 6 (350 W), and makes the display window 15a for heating level 6 be switched to red also.
  • the main control unit 19 determines that the mode has been switched to the input mode for fine adjustment of heating power and switches the display to a display for fine adjustment of heating power.
  • the main control unit 19 determines heating level 4 as belonging to the moderate heat range, determines heating levels for fine adjustment (as an exemplary distribution, 600 W, 700 W, 800 W, 900 W, 1000 W, 1100 W, 1300 W, 1500 W, and 1700 W) that are defined for the respective heating level numbers (1 to 9) given in that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level (750 W) to be "3". Subsequently, the main control unit 19 controls the display windows 15a up to the one for the determined heating level of 3 to turn red, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a.
  • the main control unit 19 controls the display windows 15a up to the one for the determined heating level of 3 to turn red, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a.
  • the main control unit 19 controls the heating control unit 14 such that induction heating is performed with the heating power corresponding to heating level 2 (700 W), and makes only the display windows 15a for heating levels 1 and 2 be lighted in red.
  • the main control unit 19 determines that the mode has been switched to the input mode for fine adjustment of heating power, as in the above case, and switches the display to a display for fine adjustment of heating power.
  • the main control unit 19 determines heating level 8 as belonging to the high heat range, determines heating levels for fine adjustment (as an exemplary distribution, 1800 W, 1900 W, 2000 W, 2200 W, 2400 W, 2600 W, 2800 W, 2900 W, and 3000 W) that are defined for the respective heating level numbers (1 to 9) given in that range, and determines the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level (2500 W) to be "6". Subsequently, the main control unit 19 controls the display windows 15a up to the one for the determined heating level of 6 to turn red, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a.
  • the main control unit 19 controls the display windows 15a up to the one for the determined heating level of 6 to turn red, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating power corresponding to heating level 7 (2800 W), and makes the display window 15a for heating level 7 be switched to red also.
  • the range to which the set heating level belongs is determined, the heating levels for fine adjustment that are defined for the respective heating level numbers given in that range are determined, and the number of the determined heating level of the fine adjustment that is the same as or approximate to the set heating level is determined.
  • the display windows 15a up to the one having the determined heating level number are made to light in red and the other display windows are made to light in blue, with the determined heating levels for fine adjustment corresponding to the heating level numbers being displayed under all the respective display windows 15a.
  • the display windows 15a up to the one having the determined heating level number turn red in the input mode for fine adjustment of heating power.
  • the present invention is not limited to such a case.
  • the display windows 15a up to the one having a heating level number of "5" that is not the same as or approximate to heating level 4 (the set heating level) but is in the middle may turn red.
  • the display windows 15a up to the one in the middle in the relevant range may turn red.
  • the user can easily recognize the positional change in display, whereby user usability is increased.
  • the mode is switched with the mode switching switch 18 from the input mode for coarse adjustment of heating power to the input mode for fine adjustment of heating power and the other way round.
  • the mode is switched with the key switch 16 or the encoder knob 17.
  • Fig. 5 includes a diagram illustrating an exemplary display indicated on a heating power display unit of an induction cooking system according to Embodiment 4 of the present invention and a diagram illustrating an exemplary operation of switching the mode from the input mode for coarse adjustment of heating power to the input mode for fine adjustment of heating power.
  • Fig. 6 includes a diagram illustrating an exemplary display indicated on the heating power display unit of the induction cooking system according to Embodiment 4 and a diagram illustrating an exemplary operation of switching the mode from the input mode for fine adjustment of heating power to the input mode for coarse adjustment of heating power.
  • the configuration of the induction cooking system is the same as that in Embodiment 1 illustrated in Fig. 1 .
  • Embodiment 4 when the key switch 16 or the encoder knob 17 is operated in any of the low heat range, the moderate heat range, and the high heat range and switching between a certain heating level numbers is made a certain number of times N (for example, six times in total) within a certain period of time T, the main control unit 19 switches the state of display on the heating power display unit 15. Specifically, as illustrated in (a) of Fig. 5 , in a state where the heating power display unit 15 displays the moderate heat range in the input mode for coarse adjustment of heating power, when switching between heating levels 4 and 5 is made six times in total within the certain period of time T (see (b) of Fig. 5 ), the mode is switched to the input mode for fine adjustment of heating power for the moderate heat range.
  • all the display windows 15a turn orange, and the display windows 15a up to the one for heating level 5, which is the middle level in the moderate heat range, are made brighter.
  • the reason for brightening up to heating level 5 in the middle of the heating power display unit 15 is that the user can easily recognize the positional change in display.
  • the heating power display unit 15 displays the high heat range in the input mode for fine adjustment of heating power as illustrated in (a) of Fig. 6
  • the mode is switched to the input mode for coarse adjustment of heating power.
  • the display windows 15a up to the one for heating level 8 (2500 W) which is, in the input mode for coarse adjustment of heating power, lower than heating level 8 (2900 W) in the input mode for fine adjustment of heating power, are made brighter.
  • the display windows 15a for the low heat range are green
  • the display windows 15a for the moderate heat range are orange
  • the display windows 15a for the high heat range are red.
  • the reason for the lowering of the heating level when switching the mode to the input mode for coarse adjustment of heating power is performed is out of safety consideration.
  • Fig. 7 is a flowchart illustrating the operation of the induction cooking system according to Embodiment 4.
  • Fig. 8 is a flowchart continued from Fig. 7 .
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the default heating level of 5 (1000 W). Subsequently, the main control unit 19 controls the heating power display unit 15 such that the display windows 15a up to the one for heating level 5 become brighter (S3). In this case, the display windows 15a for heating levels 1 to 3 belonging to the low heat range (green) and the display windows 15a for heating levels 4 and 5 belonging to the moderate heat range (green) are made brighter.
  • the main control unit 19 checks if switching between adjacent heating levels has been made N times or more in total within the certain period of time T (S5). When the main control unit 19 determines that switching between adjacent heating levels has not been made, the main control unit 19 continually heats the heating load with the desired set heating level (S9). When the main control unit 19 determines that switching between adjacent heating levels has been made N times or more in total within the certain period of time T, the main control unit 19 switches the mode to the input mode for fine adjustment of heating power for the range in which the switches have been made with the key switch 16 or the encoder knob 17 (S6).
  • the main control unit 19 switches the mode to the input mode for fine adjustment of heating power for the low heat range.
  • the main control unit 19 switches the mode to the input mode for fine adjustment of heating power for the high heat range.
  • the main control unit 19 switches the mode to the input mode for fine adjustment of heating power for the moderate heat range.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating level of 5, for example, with 5 set as the default heating level during switching to the input mode for fine adjustment of heating power (S7), and, in this case, controls the heating power display unit 15 such that the display windows 15a up to the one for heating level 5 become brighter.
  • Heating level 5 is set to, as illustrated in Figs. 3 and 4 , for example 300 W in the input mode for fine adjustment of heating power for the low heat range, for example 1000 W in the input mode for fine adjustment of heating power for the moderate heat range, and for example 2400 W in the input mode for fine adjustment of heating power for the high heat range.
  • the main control unit 19 switches the heating level from the default heating level of 5 to the set heating level and controls the heating control unit 14 such that the heating load is heated by induction (S9).
  • the main control unit 19 While heating is in progress in the input mode for fine adjustment of heating power ( Fig. 8 : S11), after a desired heating level is set with the key switch 16 or the encoder knob 17 (S12), the main control unit 19 checks if switching between adjacent heating levels has been made N times or more in total within the certain period of time T (S13). When the main control unit 19 determines that switching between adjacent heating levels has not been made, the main control unit 19 continually heats the heating load with the desired set heating level (S17). When the main control unit 19 determines that switching between adjacent heating levels has been made N times or more in total within the certain period of time T, the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power (S14).
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power and makes the display windows 15a up to the heating level of, for example, 2 brighter, with 2 set as the default heating level during the switching.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power and makes the display windows 15a up to the heating level of, for example, 5 brighter, with 5 set as the default heating level during the switching.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power and makes the display windows 15a up to the heating level of, for example, 8 brighter, with 8 set as the default heating level during the switching.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating level of 2, for example, with 2 set as the default heating level during switching (S15).
  • the heating load is heated by induction with the heating level of 5, for example, with 5 set as the default heating level during switching (S15).
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating level of 8, for example, with 8 set as the default heating level during switching (S15). Subsequently, when a desired heating level is set with the key switch 16 or the encoder knob 17 (S16), the main control unit 19 switches the heating level from the default heating level (any of heating levels 2, 5, and 8) to the desired set heating level and controls the heating control unit 14 such that the heating load is heated by induction (S17).
  • the default heating level any of heating levels 2, 5, and 8
  • the mode is switched from the input mode for coarse adjustment of heating power to the input mode for fine adjustment of heating power or the other way round by a certain operation performed on one of the key switch 16 or the encoder knob 17, which are existing parts.
  • the degree of fine adjustment of heating power is visually recognizable without an increase in cost, whereby an induction cooking system with high user usability is provided.
  • Fig. 9 includes a diagram illustrating an exemplary display indicated on a heating power display unit of an induction cooking system according to Embodiment 5 of the present invention and a diagram illustrating an exemplary operation of switching the mode from the input mode for fine adjustment of heating power to the input mode for coarse adjustment of heating power.
  • a case illustrated in (c) and (d) of the drawing will be described below in Embodiment 6.
  • the configuration of the induction cooking system is the same as that in Embodiment 1 illustrated in Fig. 1 .
  • the main control unit 19 switches the input mode for fine adjustment of heating power to the input mode for coarse adjustment of heating power.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power. In this case, heating level 3 of the input mode for coarse adjustment of heating power is selected. Further, the main control unit 19 controls the heating power display unit 15 such that the display windows 15a belonging to the individual ranges turn green, orange, and red, respectively, and such that the display windows 15a for heating levels up to 3 belonging to the low heat range become brighter.
  • the switching to the input mode for coarse adjustment of heating power in the moderate heat range and the high heat range is performed in the same manner.
  • heating power 6 is selected and in case of the high heat range, heating power 9 is selected.
  • Fig. 10 is a flowchart illustrating the operation of the induction cooking system according to Embodiment 5.
  • the main control unit 19 While heating is in progress in the input mode for fine adjustment of heating power in S21, after a desired heating level is set with the key switch 16 or the encoder knob 17 (S22), the main control unit 19 checks if heating level 9 has been selected S times or more within the certain period of time T (S23). When the main control unit 19 determines that heating level 9 has not been selected S times or more, the main control unit 19 continuously heats the heating load with the desired set heating level (S27). When the main control unit 19 determines that heating level 9 has been selected S times or more within the certain period of time T, the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power (S24).
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power and makes the display windows 15a up to the heating level of 3 brighter.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power and makes the display windows 15a up to the heating level of 6 brighter.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power and makes the display windows 15a up to the heating level of 9 brighter.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating level of 3 (S25).
  • the heating load is heated by induction with the heating level of 6 (S25).
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating level of 9 (S25).
  • the main control unit 19 switches each heating level (any of heating levels 3, 6, and 9) to the set heating level and controls the heating control unit 14 such that the heating load is heated by induction (S27).
  • the mode is switched from the input mode for fine adjustment of heating power to the input mode for coarse adjustment of heating power by selecting heating power 9 with one of the key switch 16 or the encoder knob 17, which are existing parts, S times or more within the certain period of time T.
  • the operation of switching the mode is facilitated, and the degree of fine adjustment of heating power is visually recognizable, and an induction cooking system with high user usability is provided.
  • the input mode for fine adjustment of heating power is switched to the input mode for coarse adjustment of heating power when heating level 9 is selected S times within the certain period of time T with the key switch 16 or the encoder knob 17.
  • the input mode for fine adjustment of heating power is switched to the input mode for coarse adjustment of heating power when heating level 1 is selected S times within the certain period of time T with the key switch 16 or the encoder knob 17.
  • the main control unit 19 switches the input mode for fine adjustment of heating power to the input mode for coarse adjustment of heating power.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power. Further, the main control unit 19 controls the heating power display unit 15 such that the display windows 15a belonging to the individual ranges turn green, orange, and red, respectively, and such that the display windows 15a up to the one for heating level 7 belonging to the high heat range become brighter.
  • the heating power of 7 is set.
  • the heating power of 4 is set.
  • the heating power of 1 is set.
  • Fig. 11 is a flowchart illustrating the operation of the induction cooking system according to Embodiment 6.
  • the main control unit 19 While heating is in progress in the input mode for fine adjustment of heating power in S31, after a desired heating level is set with the key switch 16 or the encoder knob 17 (S32), the main control unit 19 checks if heating level 1 has been selected S times or more within the certain period of time T (S33). When the main control unit 19 determines that heating level 1 has not been selected S times or more, the main control unit 19 continually heats the heating load with the desired set heating level (S37). When the main control unit 19 determines that heating level 1 has been selected S times or more within the certain period of time T, the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power (S34).
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power and makes the display windows 15a up to the heating level of 7 brighter.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power and makes the display windows 15a up to the heating level of 4 brighter.
  • the main control unit 19 switches the mode to the input mode for coarse adjustment of heating power and makes the display windows 15a up to the heating level of 1 brighter.
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating level of 7 (S35).
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating level of 4 (S35).
  • the main control unit 19 controls the heating control unit 14 such that the heating load is heated by induction with the heating level of 1 (S35). Subsequently, when a desired heating level is set with the key switch 16 or the encoder knob 17 (S36), the main control unit 19 switches each heating level (any of heating levels 1, 4, and 7) to the set heating level and controls the heating control unit 14 such that the heating load is heated by induction (S37).
  • the mode is switched from the input mode for fine adjustment of heating power to the input mode for coarse adjustment of heating power by selecting heating power 1 with one of the key switch 16 or the encoder knob 17, which are existing parts, S times or more within the certain period of time T.
  • the operation of switching the mode is facilitated, and the degree of fine adjustment of heating power is visually recognizable, whereby an induction cooking system with high user usability is provided.
  • the heating levels are selected as 3, 6, 9, respectively, or 1, 4, and 7, respectively.
  • the heating levels in the middle heating levels 2, 5, 8 in the respective ranges may be selected.
  • the present subject-matter includes, inter alia, the following aspects:

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Electric Ovens (AREA)
EP15182798.7A 2009-11-20 2010-11-04 Induction cooker Not-in-force EP2983451B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009264751 2009-11-20
EP10831297.6A EP2503843B1 (en) 2009-11-20 2010-11-04 Induction cooker

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP10831297.6A Division-Into EP2503843B1 (en) 2009-11-20 2010-11-04 Induction cooker
EP10831297.6A Division EP2503843B1 (en) 2009-11-20 2010-11-04 Induction cooker

Publications (2)

Publication Number Publication Date
EP2983451A1 EP2983451A1 (en) 2016-02-10
EP2983451B1 true EP2983451B1 (en) 2016-12-21

Family

ID=44059385

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Application Number Title Priority Date Filing Date
EP10831297.6A Not-in-force EP2503843B1 (en) 2009-11-20 2010-11-04 Induction cooker
EP15182798.7A Not-in-force EP2983451B1 (en) 2009-11-20 2010-11-04 Induction cooker

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10831297.6A Not-in-force EP2503843B1 (en) 2009-11-20 2010-11-04 Induction cooker

Country Status (6)

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EP (2) EP2503843B1 (ja)
JP (1) JP5436573B2 (ja)
CN (1) CN102648661B (ja)
ES (1) ES2570757T3 (ja)
HK (1) HK1171609A1 (ja)
WO (1) WO2011061898A1 (ja)

Cited By (1)

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DE102018204009B4 (de) 2018-03-15 2022-10-27 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Bedienung eines Elektrokochgeräts und Elektrokochgerät

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ES2409935R1 (es) * 2011-10-21 2013-09-13 Bsh Electrodomesticos Espana Dispositivo de aparato doméstico
ES2528090B1 (es) * 2013-08-02 2015-11-24 Eika, S.Coop. Método de control de un aparato de cocción y un aparato de cocción que lo implementa
JP6065783B2 (ja) * 2013-08-22 2017-01-25 三菱電機株式会社 加熱調理器
CN103605399B (zh) * 2013-11-21 2016-04-13 张辉兵 一种双控开关及其控制方法
EP3001108B1 (en) * 2014-09-25 2019-03-13 Diehl AKO Stiftung & Co. KG Electronic household appliance
ES2719152A1 (es) * 2018-01-08 2019-07-08 Bsh Electrodomesticos Espana Sa Procedimiento para un campo de coccion.

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Also Published As

Publication number Publication date
JP5436573B2 (ja) 2014-03-05
CN102648661A (zh) 2012-08-22
CN102648661B (zh) 2014-05-14
JPWO2011061898A1 (ja) 2013-04-04
EP2503843B1 (en) 2016-04-06
EP2503843A1 (en) 2012-09-26
EP2983451A1 (en) 2016-02-10
ES2570757T3 (es) 2016-05-20
WO2011061898A1 (ja) 2011-05-26
HK1171609A1 (en) 2013-03-28
EP2503843A4 (en) 2015-03-04

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